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LU Area Air Quality Sensors
LU Area Air Quality Sensors
| Daily AQI Color | Levels of Concern | Values of Index | Description of Air Quality |
|---|---|---|---|
| Green | Good | 0 to 50 | Air quality is satisfactory, and air pollution poses little or no risk. |
| Yellow | Moderate | 51 to 100 | Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution. |
| Orange | Unhealthy for Sensitive Groups | 101 to 150 | Members of sensitive groups may experience health effects. The general public is less likely to be affected. |
| Red | Unhealthy | 151 to 200 | Some members of the general public may experience health effects; members of sensitive groups may experience more serious health effects. |
| Purple | Very Unhealthy | 201 to 300 | Health alert: The risk of health effects is increased for everyone. |
| Maroon | Hazardous | 301 and higher | Health warning of emergency conditions: everyone is more likely to be affected. |
| Color | Levels of Concern | Concentration (µg/m³) | Description of Air Quality |
|---|---|---|---|
| Green | Good | 0.0 to 12.0 | Air quality is satisfactory, and air pollution poses little or no risk. |
| Yellow | Moderate | 12.1 to 35.4 | Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution. |
| Orange | Unhealthy for Sensitive Groups | 35.5 to 55.4 | Members of sensitive groups may experience health effects. The general public is less likely to be affected. |
| Red | Unhealthy | 55.5 to 150.4 | Some members of the general public may experience health effects; members of sensitive groups may experience more serious health effects. |
| Purple | Very Unhealthy | 150.5 to 250.4 | Health alert: The risk of health effects is increased for everyone. |
| Maroon | Hazardous | 250.5 and higher | Health warning of emergency conditions: everyone is more likely to be affected. |